locale/locarchive.h

   1 /* Definitions for locale archive handling.
   2    Copyright (C) 2002, 2009 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _LOCARCHIVE_H
  21 #define _LOCARCHIVE_H 1
  22
  23 #include <stdint.h>
  24
  25
  26 #define AR_MAGIC 0xde020109
  27
  28 struct locarhead
  29 {
  30   uint32_t magic;
  31   /* Serial number.  */
  32   uint32_t serial;
  33   /* Name hash table.  */
  34   uint32_t namehash_offset;
  35   uint32_t namehash_used;
  36   uint32_t namehash_size;
  37   /* String table.  */
  38   uint32_t string_offset;
  39   uint32_t string_used;
  40   uint32_t string_size;
  41   /* Table with locale records.  */
  42   uint32_t locrectab_offset;
  43   uint32_t locrectab_used;
  44   uint32_t locrectab_size;
  45   /* MD5 sum hash table.  */
  46   uint32_t sumhash_offset;
  47   uint32_t sumhash_used;
  48   uint32_t sumhash_size;
  49 };
  50
  51
  52 struct namehashent
  53 {
  54   /* Hash value of the name.  */
  55   uint32_t hashval;
  56   /* Offset of the name in the string table.  */
  57   uint32_t name_offset;
  58   /* Offset of the locale record.  */
  59   uint32_t locrec_offset;
  60 };
  61
  62
  63 struct sumhashent
  64 {
  65   /* MD5 sum.  */
  66   char sum[16];
  67   /* Offset of the file in the archive.  */
  68   uint32_t file_offset;
  69 };
  70
  71 struct locrecent
  72 {
  73   uint32_t refs;                /* # of namehashent records that point here */
  74   struct
  75   {
  76     uint32_t offset;
  77     uint32_t len;
  78   } record[__LC_LAST];
  79 };
  80
  81
  82 struct locarhandle
  83 {
  84   int fd;
  85   void *addr;
  86   size_t mmaped;
  87   size_t reserved;
  88 };
  89
  90
  91 /* In memory data for the locales with their checksums.  */
  92 typedef struct locale_category_data
  93 {
  94   off64_t size;
  95   void *addr;
  96   char sum[16];
  97 } locale_data_t[__LC_LAST];
  98
  99 #endif  /* locarchive.h */